180=30+2a+4a

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Solution for 180=30+2a+4a equation: 



180=30+2a+4a

We move all terms to the left:

180-(30+2a+4a)=0

We add all the numbers together, and all the variables

-(6a+30)+180=0

We get rid of parentheses

-6a-30+180=0

We add all the numbers together, and all the variables

-6a+150=0

We move all terms containing a to the left, all other terms to the right

-6a=-150

a=-150/-6

a=+25

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